Analysis of the difference between string and StingBuilder memory in C#

This article analyzes the difference between string and StingBuilder in C# for example, which helps to better grasp the usage of string and StingBuilder in C# programming. Share it for your reference. The specific methods are as follows:

For the difference between string and StringBuilder, refer to MSDN. This article uses programs to demonstrate their differences in memory and therefore their behavior differently.

Let’s take a look at the following code:

//Example: string's memory modelnamespace ConsoleApplication2
{
  class Program
  {
    static void Main(string[] args)
    {
      string a = "1234";
      string b = a;//a,and b point to the same address
      (a);
      (b);
 
      a = "5678";
      (a);
      (b);//That b's value is not changed means string's value cann't be changed

      ();
    } 
  }
}

Output:

1234
1234
5678;change a's value,b's value is not changed
1234

//Example: StringBuilder's memory modelnamespace ConsoleApplication3
{
  class Program
  {
    static void Main(string[] args)
    {
      StringBuilder a = new StringBuilder("1234");
      StringBuilder b = new StringBuilder();
      b = a;
      ();
      ("5678");
      (a);
      (b);
      ();
    }
    
  }
}

Output:
5678
5678

I hope this article will be helpful to everyone's C# programming.